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Don't ever stick the ozone tubing in your mouth. The acid that builds up will cause serious chemical burns!
Do you speak from experience??
Chemical burns?? The blisters could have been from something else :-/
experience?
You Burned Me on that one! Ouch
Whenever I lost the bubbles, my ozonator check valve needed replacing. To check...remove check valve from small diameter tubing and blow (do not suck) through. You should be able to blow one way and not the other. If you can't blow both ways, that is most likely your problem. Be prepared for the nasty taste.
The filters are fine because I just cleaned them recently....Brings up an interesting question...I assume I could simply call the dealer and have them come out and fix it. Tub is 6 months old so should be covered under warranty. Right?